Home / 913,912.64-1,370,605.92-314,849.60

Finding the Fourth Proportional to 913,912.64, 1,370,605.92 and 314,849.60

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Solution

The fourth proportional to 913,912.64, 1,370,605.92 and 314,849.60 is: 472,183.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,912.64 : 1,370,605.92 = 314,849.60 : x
  2. Step 2: Convert to fraction form
    913,912.64/1,370,605.92 = 314,849.60/x
  3. Step 3: Cross multiply
    913,912.64x = 1,370,605.92 × 314,849.60
  4. Step 4: Simplify right side
    913,912.64x = 431,534,725,669.63
  5. Step 5: Solve for x
    x = 431,534,725,669.63/913,912.64
  6. Step 6: Final answer
    x = 472,183.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.